Chemical Research in Chinese Universities

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Progress in seed-assisted synthesis of (silico)aluminophosphate molecular sieves

  

  1. 1. National Engineering Laboratory for Methanol-to-Olefins, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China;
    2. University of Chinese Academy of Sciences, Beijing 100049, P. R. China
  • Published:2021-12-15

Abstract: AlPO/SAPO molecular sieves are an important class of open-framework crystalline materials with wide applications thanks to their molecular-scale selectivity, moderate/strong acidity and excellent (hydro)thermal stability. In recent decades, the manufacturing of new microporous solid with ordered structure has been widely investigated and many effective methods have been developed, which enrich the material types and broaden their applications beyond the traditional use as catalysts and adsorbents. However, the development on the synthesis of AlPO/SAPO molecular sieves is still insufficient and lags behind the needs of applications. Herein, we summarize the work on the seed-assisted synthesis of AlPO/SAPO molecular sieves compared with the zeolite synthetic system, aiming to prompt the synthesis and application of AlPO/SAPO molecular sieves.

Key words: seed-assisted synthesis, AlPO/SAPO molecular sieves, crystallization mechanism